Welcome to the world of Scilab Speech

Function List--Cepstral Analysis

1．ceps_real

2．ceps_com

1．ceps_real----calculate the real cepstrum of a speech signal.

Calling Sequence:

　　ceps_real(wavefile);

　　ceps_real(wavefile, window_type);

Parameters:

　　wavefile: wave file. Vector or matrix.

　　window_type: desired window type. Interger.

Description:

This function calculates the real cepstrum which is the inverse Fourier transform of the real logarithm of the magnitude of the Fourier transform of a sequence.

Examples:

x=wavread('d:\test.wav');

y=ceps_real(x);

y=ceps_real(x, 4);

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2．ceps_com----calculate the complex cepstrum of a speech signal.

Calling Sequence:

　　ceps_com(wavefile);

　　ceps_com(wavefile, window_type);

Parameters:

　　wavefile: wave file. Vector or matrix.

　　window_type: desired window type. Interger.

Description:

Complex cepstral analysis is a nonlinear signal processing technique that is applied most commonly in speech processing and homomorphic filtering.

Examples:

x=wavread('d:\test.wav');

y=ceps_com(x);

y=ceps_com(x, 4);

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